Rhodium, commonly known as “black gold”, is the platinum group metal with the least amount of resources and production. The content of rhodium in the earth’s crust is only one billionth of a billionth. As the saying goes, “what is rare is precious”, in terms of value, the value of rhodium is not lower than that of gold at all. It is considered the rarest and most valuable precious metal in the world, and its price is 10 times more expensive than gold. In this way, 100kg is not a small amount.
Precious metal rhodium
So, what does rhodium powder have to do with fiberglass?
We know that glass fiber is an inorganic non-metallic material with excellent performance, which is widely used in key fields such as electronics, construction, aerospace, and transportation. In its production process, there is a very important process – wire drawing, in which the raw materials are melted into a glass solution at high temperature in a kiln, and then quickly passed through a porous bushing to be drawn into glass fiber strands.
Most of the porous bushings used in glass fiber drawing are made of platinum-rhodium alloys. Platinum can withstand high temperatures, and rhodium powder is used as a supplement for material strength. After all, the temperature of liquid glass is between 1150 and 1450 °C. Thermal corrosion resistance.
The drawing process of the glass solution through the leakage plate
It can be said that platinum-rhodium alloy bushings are very important and commonly used means of production in glass fiber factories.
Post time: Oct-08-2022